Identify the hormones that are secreted in large amount prior to ovulation :
$A.$ $LH$
$B.$ $FSH$
$C.$ $Estrogen$
$D.$ $Progesterone$
$A\; only$
$A \;\&\;\ B \;only$
$A, B \;\& \;C only$
$A, B, C \;\&\; D$
Which of the following depicts the site of impantation of blastocyst under normal condition?
Fertilizin is a chemical substance produced from
Acrosome of sperm is formed from
Coelom derived from blastocoel is known as
Extra embryonic membrane amnion is not found in amphibians because
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